7. What is a special nutrient that is involved in most chemical reactions in the body and makes up a major component of blood?

As the human population grows, what happens to our natural-resource requirements? o they increase o they decrease o they do not change. they go in cycles

Ronald wants to see if a new shower cleaner works better in removing soap than his old cleaner. he uses the new cleaner on one half of the shower tiles and his old cleaner on the other half. identify the independent and dependent variables in this experiment. enter your answer in the space provided.

Guard cells control which event? the growth of plants capture of solar energy gas exchange in leaves water absorption in roots